Disk wheel



GEORGE H. FORSYTH, 0F Cl'lGAG', lLLllllOlS.

intensa.

Original application filed November 26, 1916, Serial No. 26a,258.

February 21, w21.

T0 all whom t may concer/1t.'

Be it known that l, Groen H. Fonsrvrn, a citizen oit the United States,residing at Chicago, in the county ot Coolr and State of llllinois, haveinvented certain new and useful lmprovements in Disk "Wheels, oit' whichthe following is a specification.

This application is a division oit my copending application Serial No.26d-,253.

f lhe invention ot this application relates to metal wheels and moreparticularly to that type characterized by the employmentv of a diskbody portion having` lixedly associated therewith an overhanging tellyportion adapted to receive a demountable rim.

The principal objects ot the invention are the provision otrim-assembling means which shall eiliciently support the forward edge ofthe rim, transmitting the radial shocks of impact `in use directly tothe dislr body portion ot the wheel, and which shall furthermore impartto a wheel of this 'type an appearance ot peripheral stability byincreasing the apparent thickness of' the telly in simulation of thetelly of a wood wheel of artillery type.

ln order that the invention may be readily understood and appreciated bythose skilled in the art, l have in the accompanying drawing and in theJfollowing` description predicated thereon, set forth the invention asem bodied in wheel structures differing in detail.

ln the drawings- Figures 1 and 2 are views in vertical sectionillustrating the invention as embodied in double dish wheels in thefront tace only, Fig. 1 corresponding to Fig. 8 ci the parentapplication, and Fig. 2 being a composite ot Figs. 11 and 13 ot thatapplication;

ligs. 3, 4 and 5 are tragmentary sectional views illustrating theinvention as applied to wheels having a varying telly structure, bothfront and rear, and corresponding respectively to Figs. 1li, 15 and 16of the parent application; and

Figs. 6 and 7 are fragmentary views illustrating the invention asapplied in the front face only oi double and single dislrwheelsrespectively.

Having reference to Figs. 1 and 2, these wheels are represented ascomprising the hub 11 with the 'forward hub plate 12 and a rear hubplate 13 developed into the usual brake drum 14. lliller member 15 isemployed within the space between the two Speccaton of Letters Teatent.

llatented May 1i?, 1221.

Divided and this application tiled Serial llto. lll-6,660.

hub plates usually occupied by the spokes ot a wooden wheel. lhe body otthe wheel proper comprises the front and rear dislrs 16 and 1' havingtheir central portions separated by the liller member 15 and clampedbetween said liller member 15 and the two hub plates 12 and 13 by thebolts 16.

1n 1 the iront dish 16 is bent rearwardly at 19 'from a step, shoulderor bead at 20. llrom 19 the dish entends radially and then rearwardly totorni a telly portion having' a vertical iront jface 21 and horizontalrim-receiving tace 22. The rear disk 1'? entends in a radial directionand then rearwardly parallel and in juxtaposition to the portions 21 and22 of the dislr 19, and at its margin is housed within the lipped overmargin 2? et the dislr 16.

rlhe overhanging telly portion of the wheel is adapted to receive thedemountable rim 241, which is preferably ot slightly less inner diameterthan the outer diameter ot the telly portion 22 whereby as the rim isassembled laterally with the telly the latter will be subjected toinwardly directed radial compression shared by the dislr body et' thewheel.

Els rim-assembling means a shim or shims are employed comprising eitheran annular shim, split or integral, or a plurality ot' individual shimsdisposed at spaced intervals about the wheel. rl`he shim or shimspreterably comprise a body portion 25, heel portion 26 and a headportion 2'?, the body portion of the shim and the vertical dish portion21 being apertured to accommodate the assembling bolts 26. The heel 26of the shim serves as a i'ulcrum, being seated. upon the ledge 1S) abovethe bead or step 26. ils the bolts 28 are drawn home, the shim is tiltedupon its liulcrum causing its head 27 to describe an are about thetulcrumal point which exerts a torce* rearwardly and outwardly upon theforward edge of the rim. .llhis results in l'orcing the rim rearwardlyto compress the telly portion 22, and also transmits radial pressureinwardly upon the dish body 16. The assembled wheel presents a lronttace wherein the body portion 25 of the shim is substantially flush withthe outer portion ot the disk 16 relieved by the bead 20. lWhere anannular shim is employed, as is preterable, the front tace of the shimpresents the appearance et a :telly tace conveying an impression ottelly-thickness similar to that of the wooden telly on a coperates withthe shim do as hereinbe'fore Wheel ot the artillery type.

The description of Fig. 1 lapplies in substance to Fig. 2, the principaldifference being that the horizontal Wall 19 extends rearwardly tosubstantially the median plane of the Wheel Where the vertical portionsof the two disks extend radially side by side and then in oppositedirections front and rear to form a telly substantially T- shaped incross section, ox-'erhanging front and rear instead of at the rearalone. The upper part ot Fig. 2 includes the mounting of the Valve stemas illustrated in Fig. 3 of the parent application, Whereas the lowerportion ot the figure is directed to the Wheel generally as shown inFig. 11 of the parent application. Aside from these points of diffference, and the tact that beyond the bead 2O the Wall 19 is oii'set asillustrated at 19, the structure pertinent to this invention is thesame, and the appearance presented by the shim 25 corresponds to that otFig. 1.

InV Figs. 3 and 4 the forward and rear disks 29 and 30 are bent towardeach other to form the steps or beads 31, 32 whence to extendhorizont-ally at 33, 39; and thence radially at 35, 36 in contact witheach other and thence horizontally' in opposite directions 37, 3S totorni a T-shaped :telly to support the rim 39. Upon the two sides ot thewheel both front and rear are mounted annular shims 404-1 having theirheel portions tulcrumed upon the beads 31, 32 and assembled with theWheel by means of the long bolts t2 extending between both ot the shimsand through the Walls 35, 36. In this particular form of constructionthe disks 29 and 30 are placed under radial stress by the inward thrustapplied'to the beads 31, 32 as the shims are drawn together with theirheads beneath the demountable rim.

In Fig. 4l the demountable rim is omitted, the tire setting directlyupon the telly portions 37, 38 and being confined laterally by means otthe head portions 35a and 36a ot the shims. In this instance theparticular function oft the shims is to retain the tire and to impart anappearance of Ytelly thickness Without regard to any material stressimparted to the disks.

A construction somewhat similar to Fig. 4 is shown in Fig. 5, thedemountable rim being omitted and the tire held in place by the heads otthe shims. Slight differences are also present in the coniguration ofthe telly ortion of the disks.

In lig. 6, corresponding to Fig. 9 of the parent application, theinvention is shown as applied to a double disk TNheel in which the reardisk 43 extends in a substantially radial direction from the hub portionrelieved by pockets 43a. For use in the other forms oit construction thefront disk is provided with the step or shoulder 44 Which described.

F ig. 7, cfnresponding to Fig. Z ot thc parent application, illustratesa wheel coinprising a single disk L1G provided with :r stepped portion41-7 and having associated therewith the rim-assembling shim iS, tluyfunctions performed there y being suhstantially the same as describedwith rel'- erence to the foregoingfigures.

I claim:

1. In a Wheel, the combination oi" a hul portion, a tire-carryingportion, a medial disk portion provided with a step adjacent itsperiphery, and a tire-retaining member having a tulcrum bearing at itsinner edge upon the step.

2. In a Wheel, the combination of a hub portion, a tire-carryingportion, a medial disk portion having an annular bead adjacent itsperiphery, and annular' tire-retaining member haring` a 'foot steptulcrum bearing upon the bead.

3. In a Wheel, the combination with a hub, a tire and a tire-retainingmember. ot a sheet steel disk haiv'ing a peripheral step forming afulcrum seating of the tire-retaining member, said disk being then rerersely bent to torni a i'elly.

Ll. In a Wheel, the combination with :i hub, a tire and tire-retainingmember, ol a single sheet steel disk having a medial portion with aperipheral step forming a tulcrum seating or' the tire-retaining member,said disk member being then reyersely bent to torni a telly.

A. disk Wheel comprising a body portion and a peripheral tire-carryingportion, the body portion of the disk forwardly beaded a slight distanceinwardly from its periphery to form a fulcrum bearing forrim-positioning means, that portion ot the disk between the bead andtire-carrying portion being substantially parallel to the plane of theWheel to accommodate a rimpositioningshim and to simulate the side :taceot a telly.

6. A disk Wheel comprising a body portion and a peripheral tire-carryingportion` the body portion or the disk forwardly beaded a slight distanceii vardly from its periphery, that portion ot the disk between the beadand tire-carrying portion being substantially parallel to the plane otthe wheel to simulate the side tace o'r a telly, and a tire-retainingmember having a ttulcrum bearing upon the disk outwardly oi' the bead.

7. A disk Wheel comprising a body Por tion and a peripheraltire-carrying portion, the body portion ot the disk tor- Wardly beaded aslight distance inwardly from its periphery, that portion olf the diskbetween the bead and tire-carrying portion being substantially parallelto the plane ot llO the Wheel to accommodate a rim-positioning' shim andto simulate the side face of a ielly, the shim and disk presenting asuh- Stantially flush surface.

8. In a wheel, the combination of a hub portion, a medial disk portion,and an overhanging telly portion adapted to receive a deniountable rim,the medial disk portion having an annular bead adjacent its periphery,and an annular rim-retaining and supporting shim fulcrumed at its in neredge upon the bead, and bolts engaging the shim and the disk outwardlyof the bead for rocking the shim, whereby oppositely directed reactionis set up and maintained between the rim and that portion of the diskinwardly of the bead.

In witness whereof l have hereunto signed my name in the presence of twosubscribing witnesses.

GEORGE H. FORSYTH.

Witnesses MARGUERITE SYP, FLORENCE K. GILLESPIE.

